Datasheet

If you don't get this message, first check that the red/blue leds flickered when you press the reset button. If they didnt,

make sure the board is powered via V+ or Vbat. If they do flicker, make sure you've got the right baud rate selected in

the software (9600) and the RX/TX/GND pins connected right

Hello world!

Ok we can now turn on an LED. There is a red LED on each board, connected to GPIO #0

NodeMCU's pinouts are not the same as the Arduino/gcc pinouts. We print the Arduino pinouts on the board

so watch out!

Rev A of this board has GPIO #4 and #5 swapped (the modules changed pinouts on us) so if #4/#5 aren't

working for you, try swapping! We'll fix in the next PCB run